Fix Solution class complaint when meta= set to {} to not complain about sid mismatch ('cause 1 sid is nil!).
Fix Solution class complaint when meta= set to {} to not complain about sid mismatch ('cause 1 sid is nil!).

tadpol/MuranoCLI,tadpol/MuranoCLI,exosite/MrMurano,exosite/MrMurano,tadpol/MuranoCLI